ETYM Old Eng. aventure, aunter, anter, French aventure, from Late Lat. adventura, from Latin advenire, adventum, to arrive, which in the Romance languages took the sense of See Advene.
A wild and exciting undertaking (not necessarily lawful); SYN. escapade, risky venture, dangerous undertaking.

ETYM Written also endeavour.
(Alternate spelling: endeavour).

Alternate (chiefly British) spelling for endeavor.

ETYM French, from Spanish escapada escape, from escapar to escape; or French, from Italian scappata escape, escapade, from scappare to escape. see Escape.
Any carefree episode; SYN. lark.

ETYM Aphetic form of Old Eng. aventure. Related to Adventure.
1. A commercial undertaking that risks a loss but promises a profit.
2. Any venturesome undertaking especially one with an uncertain outcome.

ETYM Aphetic form of Old Eng. aventurous. Related to Adventurous, Venture.
Daring; bold; hardy; fearless; venturesome; adventurous.